* **cli:** catch all possible errors thrown from proper-filelock ([#5347](https://github.com/nuxt/nuxt.js/issues/5347)) ([39bbe46](https://github.com/nuxt/nuxt.js/commit/39bbe46))
* **cli:** lock project during build or generate ([#4985](https://github.com/nuxt/nuxt.js/issues/4985)) ([4e51723](https://github.com/nuxt/nuxt.js/commit/4e51723))
* no false positives for plugins with index.js ([#4714](https://github.com/nuxt/nuxt.js/issues/4714)) ([eef2af3](https://github.com/nuxt/nuxt.js/commit/eef2af3)), closes [#4713](https://github.com/nuxt/nuxt.js/issues/4713)
### Features
* **server:** timing option for `Server-Timing` header ([#4800](https://github.com/nuxt/nuxt.js/issues/4800)) ([b23f5c9](https://github.com/nuxt/nuxt.js/commit/b23f5c9))
* **ts:** add TSX support ([#4613](https://github.com/nuxt/nuxt.js/issues/4613)) ([4d52742](https://github.com/nuxt/nuxt.js/commit/4d52742))